Back Ҳ. ҟ. 664 Abkhazian 664 ق م Arabic 664 ق م ARZ 664 e.C. AST 664 да н.э. Byelorussian 664 г. пр.н.е. Bulgarian 664 v. Chr. German 664 BC English -664 Esperanto ۶۶۴ (پیش از میلاد) Persian
| Blianta RC: 667 RC 666 RC 665 RC - 664 RC - 663 RC 662 RC 661 RC | |
| deichniúra: 690idí RC 680idí RC 670idí RC - 660idí RC - 650idí RC 640idí RC 630idí RC | |
| Aois: 8ú haois RC - 7ú haois RC - 6ú haois RC | |